1. Taking place by degrees
   - gradational, graduated

See also: gradual

• Oberson
• obese
• obesity
• obesity diet
• obey
• obfuscate
• obfuscation
• obfuscatory
• obi
• obidoxime chloride
• obiism
• obit
• obiter
• obiter dictum
• obituary
• object
• object ball
• object code
• object glass
• object language
• object lens
• object lesson
• object of a preposition
• object of the verb
• object program